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Lookup NU author(s): Dr Kai Alter
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Although laughter is an important aspect of nonverbal vocalization, its acoustic properties are still not fully understood. Extreme articulation during laughter production, such as wide jaw opening, suggests that laughter can have very high first formant (F1) frequencies. We measured fundamental frequency and formant frequencies of the vowels produced in the vocalic segments of laughter. Vocalic segments showed higher average F1 frequencies than those previously reported and individual values could be as high as 1100 Hz for male speakers and 1500 Hz for female speakers. To our knowledge, these are the highest F1 frequencies reported to date for human vocalizations, exceeding even the F1 frequencies reported for trained soprano singers. These exceptionally high F1 values are likely to be based on the extreme positions adopted by the vocal tract during laughter in combination with physiological constraints accompanying the production of a “pressed” voice.
Author(s): Szameitat DP, Darwin CJ, Szameitat AJ, Wildgruber D, Alter K
Publication type: Article
Publication status: Published
Journal: Journal of Voice
Print publication date: 08/04/2010
ISSN (print): 0892-1997
ISSN (electronic): 1873-4588
Publisher: Mosby, Inc.
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